Recent content by ADKgenset

Thanks. I can’t find thermostat location in manual, and haven’t done this before. Forgive my ignorance, but what/where should I be looking?

It will shut down while running when temps get into teens (Fahrenheit). Fuel is either 50/50 or straight kerosene at those times, so it shouldn’t be gelling. 5w30 or 10w30 oil, per manual at those ambient temps. Checked fuel for water, none detected on dipstick with water detecting paste...

Time for me to flush the coolant in my Onan DNAD 11.5 kW genset. Powers an off grid cabin. Have never done it, and guessing that’s why the generator is shutting down on occasion when temps are just in teens. Plugging in block heater solves issue, so really hope it’s just a matter of coolant...

The "no fully synthetic" actually came from a Cummins service rep, which surprised me since the manual only specified viscosity and API rating. But as you said maybe synthetics weren't much of a consideration at the time it was manufactured. Good question. I don't have a way of externally...

Ha! Good stuff, thanks guys. Great info on this site. I'm a rookie here - what's the knock on synthetic? CalG, your point about advances in oil since 2004 make a lot of sense to me. Not sure why they'd suggest not to use synthetic, but that's about all I can find that's 5w30 diesel oil...

Hello, I have an 11.5kW diesel (Onan DNAD) genset that powers a small cabin. Made 2004-ish, has 7500 hours on it. I change the oil pretty religiously at intervals less than the 250 hours the manual calls for. I normally run 10w30 oil in winter, but have slow start ups when it gets real cold...